<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>北大青鸟宣传片</title>
		<meta name="viewport" content="width=device-width, initial-scale=1">
	</head>
	<body>
		<video controls="controls" loop="loop" autoplay="autoplay" >
			<source src="img/bdqn.avi" type="video.avi"></source>
			<source src="img/bdqn.mp4" type="video/mp4"></source>
			<source src="img/bdqn.webm" type="video/webm"></source>
		</video>
	</body>
</html>